About Dennis
Dennis Wilenchik is the founding member of Wilenchik & Bartness, P.C., a prominent law firm located at 2810 North Third Street, Phoenix, Arizona 85004. Established in 1991, the firm specializes in complex business disputes, civil litigation, and white-collar criminal defense. With over 40 years of legal experience, Wilenchik has handled numerous high-profile cases, earning national recognition for his expertise in the field. His firm is known for providing high-level litigation services to a select group of clients across various sectors, including real estate, business, construction, and government. Before founding his own firm, Wilenchik served as a senior litigation partner at two established law firms: Storey & Ross and Squire, Sanders & Dempsey, both located in Phoenix.
His legal career also includes a significant role as Deputy County Attorney for Maricopa County, where he focused on sex crime cases. In this capacity, he was promoted to the Special Operations Division, further honing his skills in complex legal matters. This experience provided a solid foundation for his later work in private practice. Wilenchik earned his Juris Doctor (J.D.) from South Texas College of Law, where he developed a strong legal acumen. Prior to that, he graduated magna cum laude with a Bachelor of Arts (B.A.) from Brooklyn College of the City University of New York.
His educational background has been instrumental in shaping his analytical and approach to law. He is licensed to practice in multiple jurisdictions, including Arizona, Texas, New York, and before the United States Supreme Court and the Ninth Circuit Court of Appeals. Throughout his distinguished career, Wilenchik has received numerous accolades that attest to his legal proficiency. He has been rated Martindale-Hubbell AV®-Preeminent™, the highest rating available for legal professionals. Additionally, he is listed in the national Bar Register of Preeminent Lawyers and has been named a "Superlawyer" by Thomson-Reuters.
His commitment to the legal profession is further exemplified by his fellowship with the American Bar Foundation, recognizing his contributions to the field. Wilenchik has also played an active role in legal community leadership. He served as President of the Maricopa County Bar Association Young Lawyers Division and Chairman of the State Bar of Arizona Trial Practice Section. His influence extends beyond the courtroom, as he has been appointed by the Governor to serve on the Advisory Board of the Arizona Department of Real Estate and the Board of Naturopathic Physicians’ Medical Examiners. These roles reflect his dedication to enhancing the legal field in Arizona and supporting the development of future legal professionals.
